Shrimp, rice and brassica rapa continuous cropping ecological circulatory farming new mode

Abstract

The invention provides a shrimp, rice and brassica rapa continuous cropping ecological circulatory farming new mode. The shrimp, rice and brassica rapa continuous cropping ecological circulatory farming new mode is characterized in that after finish of shrimp farming and shrimping in a rice field, one-season high-quality rice is planted in an organic planting mode, one-season brassica rapa is planted after harvesting of the rice, the sowing time of brassica rapa is well adjusted to ensure that brassica rapa mosses can be harvested for 1-2 times before water cray culture on parcels of the rice field in mid-March of the next year, residues left after harvesting of the brassica rapa mosses serve as cray feeds, and residues left after eating of crays serve as green manures. According to the shrimp, rice and brassica rapa continuous cropping ecological circulatory farming new mode, the resources of shrimp and rice farming and planting field parcels are fully utilized, the problem that by adoption of a common shrimp and rice farming and planting mode, the field parcels are idle for about three months from the time after rice harvesting to the time before water supply for the field parcels of the next year is solved, the field parcel resources are fully utilized and the multiple crop index is increased. The shrimp, rice and brassica rapa continuous cropping ecological circulatory farming new mode is high in benefit, low in production cost and high in field parcel utilization ratio, forms a virtuous ecological cycle, and is a green, environment-friendly and low-carbon rice and shrimp planting and farming new mode.

Description

technical field [0001] The invention relates to the field of ecological planting and breeding, in particular to a new mode of continuous cropping ecological cycle planting of shrimp, rice and cabbage-type rape. Background technique [0002] The comprehensive farming mode of shrimp and rice co-cropping adopted by farmers is mainly characterized by low investment, low risk, short cycle, quick effect, good benefit and easy operation. Taking shrimp and rice as an example, the yield of high-quality rice per mu (organic rice quality) is about 500kg, and the income of shrimp is increased. Generally, the yield of crayfish per mu is 75-100kg, and the yield of cabbage-type rapeseed is more than 400kg. The total output value per mu is 7000-9000 yuan. The net profit per mu is more than 3,500 yuan, which is more than 3,000 yuan more than the net income per mu of ordinary rice planting. [0003] In recent years, the demand for crayfish in the domestic market has been increasing day by da...

AI Technical Summary

Problems solved by technology

[0005] However, the ordinary shrimp and rice breeding mode has the problem that the farmland is idle for about 3 and a half months after the rice is harvested and before the field is watered in the second year. The farmland is idle for a long time and the resources are not fully utilized.